@garritfra Hi! Well, it depends on what exactly you expect in terms of "flexibility", but take a look at the free version of Blocksy https://wordpress.org/themes/blocksy/. Otherwise, the new "block themes" https://wordpress.org/documentation/article/block-themes/ are pretty flexible. Block themes by Automattic https://wordpress.org/themes/author/automattic/ or Anders Norén https://wordpress.org/themes/author/anlino/ are free/libre, well-conceived and without upselling attempts on every corners.